Polymer compositions suitable for use as dispersing resins

Polymeric materials (I), suitable for use as dispersing resins, are obtd. by reacting (1) a polymer (II) of (a) 80-100 mole% (1-25C alkyl)-ester of an alpha , beta -unsatd. carboxylic acid, (b) 0-20 mole% other comonomer(s) and (c) a starter and/or regulator to produce OH end gps. on most of the pol...

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Bibliographische Detailangaben
Hauptverfasser:	SCHELBLE, JOSEF, LEHNER, AUGUST, KOHL, ALBERT, KRESS, RIA, SCHNEIDER, NORBERT, BRODT, GREGOR, WEINGART, FRANZ
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHYSICS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Polymeric materials (I), suitable for use as dispersing resins, are obtd. by reacting (1) a polymer (II) of (a) 80-100 mole% (1-25C alkyl)-ester of an alpha , beta -unsatd. carboxylic acid, (b) 0-20 mole% other comonomer(s) and (c) a starter and/or regulator to produce OH end gps. on most of the polymer chains with (2) a polyfunctional isocyanate (III) to give a prod. (IV), using a mole ratio of (NCO gps.):(OH gps. in II) = 1.2-3.9, and (3) reacting (IV) with (a) a cpd. contg. NCO-reactive gps., with a ratio of 2-7 moles reactive gps. per mole free NCO gps. in (IV), and then reacting the prod. obtd. (VI) with a cpd. (VII) which reacts with the free reactive gps. to introduce acid gps., or (b) a NCO-reactive cpd. (VIII) which itself enables the introduction of acid gps. Also claimed is (i) this process as such, (ii) pigment prepns. contg. a pigment (pref. a magnetic pigment) and material (I), and (iii) magnetic recording materials contg. magnetic pigments treated with (I).